<!DOCTYPE html>
<html lang="zh-cn">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Title</title>
    <script src="./jquery/jquery.js"></script>
    <script src="./js/02.js"></script>
<!--    <script src="./jquery/jquery.js"></script>-->
</head>
<body>
    <h4>h4标题-外部</h4>
    <div id="test">
        <h4>h4标题-div内部</h4>
        <ul class="list">
            <li>元素1</li>
            <li>元素2</li>
            <li>元素3</li>
            <li>元素4</li>
            <li>元素5</li>
        </ul>
    </div>
</body>
</html>